| Parameter |
Value |
| Designation |
C/2014 Q6 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2015-01-06T09:14:07.203840Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:32:59Z |
| Obs used |
40 |
| NEO |
- |
| M1 |
7.100 |
| K1 |
15.000 |
| PC |
0.030 |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2014-10-28.0000000 |
| e |
0.99934882 |
| q (au) |
4.222707 |
| a (au) |
6484.666285 |
| i (deg) |
49.796804 |
| Ω (om, deg) |
326.655969 |
| ω (w, deg) |
2.534775 |
| M (ma, deg) |
359.999867 |
Magnitude
Scatter + Global Linear
$$
M_a = (6.415 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
6.415 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-1.000 |
| k |
1.000 |
| δ90 |
10.000 |
| Parameter |
Symbol |
Range |
Description |
| Absolute magnitude at 1 AU from Sun and Earth |
H0 |
-5 to 20 |
Intrinsic brightness of the comet |
| Photometric slope parameter |
n |
2 to 6 |
Rate of brightness change with heliocentric distance |
| Forward scattering asymmetry factor |
gf |
0.8 to 1 |
Degree of forward scattering |
| Backward scattering asymmetry factor |
gb |
-1 to -0.5 |
Degree of backward scattering |
| Partitioning coefficient |
k |
0.8 to 1 |
Ratio between forward/backward scattering contributions |
| Dust-to-gas brightness ratio |
δ90 |
1 to 10 |
Relative contribution of dust scattering to gas emission |
Reference: EPSC-DPS2025-160
Ephemeris
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-09-20 00:00 |
08:28:00.67 |
+52:37:49.3 |
HIP 41302 |
30.21 |
| 2026-09-20 12:00 |
08:28:05.45 |
+52:38:05.1 |
HIP 41302 |
30.92 |
| 2026-09-21 00:00 |
08:28:10.18 |
+52:38:21.2 |
HIP 41302 |
31.63 |
| 2026-09-21 12:00 |
08:28:14.87 |
+52:38:37.5 |
HIP 41302 |
32.34 |
| 2026-09-22 00:00 |
08:28:19.50 |
+52:38:54.2 |
HIP 41302 |
33.05 |
| 2026-09-22 12:00 |
08:28:24.09 |
+52:39:11.1 |
HIP 41302 |
33.76 |
| 2026-09-23 00:00 |
08:28:28.63 |
+52:39:28.3 |
HIP 41302 |
34.47 |
| 2026-09-23 12:00 |
08:28:33.12 |
+52:39:45.8 |
HIP 41302 |
35.17 |
| 2026-09-24 00:00 |
08:28:37.57 |
+52:40:03.6 |
HIP 41302 |
35.88 |
| 2026-09-24 12:00 |
08:28:41.96 |
+52:40:21.6 |
HIP 41805 |
36.40 |
| 2026-09-25 00:00 |
08:28:46.30 |
+52:40:39.9 |
HIP 41805 |
35.73 |
| 2026-09-25 12:00 |
08:28:50.60 |
+52:40:58.5 |
HIP 41805 |
35.07 |
| 2026-09-26 00:00 |
08:28:54.84 |
+52:41:17.3 |
HIP 41805 |
34.41 |
| 2026-09-26 12:00 |
08:28:59.04 |
+52:41:36.5 |
HIP 41805 |
33.76 |
| 2026-09-27 00:00 |
08:29:03.18 |
+52:41:55.8 |
HIP 41805 |
33.11 |
| 2026-09-27 12:00 |
08:29:07.27 |
+52:42:15.5 |
HIP 41805 |
32.46 |
| 2026-09-28 00:00 |
08:29:11.31 |
+52:42:35.4 |
HIP 41805 |
31.82 |
| 2026-09-28 12:00 |
08:29:15.30 |
+52:42:55.6 |
HIP 41805 |
31.18 |
| 2026-09-29 00:00 |
08:29:19.24 |
+52:43:16.1 |
HIP 41805 |
30.54 |
| 2026-09-29 12:00 |
08:29:23.12 |
+52:43:36.8 |
HIP 41805 |
29.91 |
| 2026-09-30 00:00 |
08:29:26.95 |
+52:43:57.7 |
HIP 41805 |
29.28 |
| 2026-09-30 12:00 |
08:29:30.73 |
+52:44:19.0 |
HIP 41805 |
28.66 |
| 2026-10-01 00:00 |
08:29:34.46 |
+52:44:40.5 |
HIP 41805 |
28.03 |
| 2026-10-01 12:00 |
08:29:38.13 |
+52:45:02.2 |
HIP 41805 |
27.42 |
| 2026-10-02 00:00 |
08:29:41.75 |
+52:45:24.2 |
HIP 41805 |
26.80 |
| 2026-10-02 12:00 |
08:29:45.32 |
+52:45:46.5 |
HIP 41805 |
26.19 |
| 2026-10-03 00:00 |
08:29:48.83 |
+52:46:09.0 |
HIP 41805 |
25.58 |
| 2026-10-03 12:00 |
08:29:52.29 |
+52:46:31.8 |
HIP 41805 |
24.97 |
| 2026-10-04 00:00 |
08:29:55.69 |
+52:46:54.8 |
HIP 41805 |
24.37 |
| 2026-10-04 12:00 |
08:29:59.04 |
+52:47:18.1 |
HIP 41805 |
23.77 |
| 2026-10-05 00:00 |
08:30:02.33 |
+52:47:41.6 |
HIP 41805 |
23.17 |
| 2026-10-05 12:00 |
08:30:05.56 |
+52:48:05.4 |
HIP 41805 |
22.58 |
| 2026-10-06 00:00 |
08:30:08.74 |
+52:48:29.4 |
HIP 41805 |
21.99 |
| 2026-10-06 12:00 |
08:30:11.87 |
+52:48:53.6 |
HIP 41805 |
21.40 |
| 2026-10-07 00:00 |
08:30:14.93 |
+52:49:18.2 |
HIP 41805 |
20.82 |
| 2026-10-07 12:00 |
08:30:17.94 |
+52:49:42.9 |
HIP 41805 |
20.23 |
| 2026-10-08 00:00 |
08:30:20.89 |
+52:50:07.9 |
HIP 41805 |
19.65 |
| 2026-10-08 12:00 |
08:30:23.78 |
+52:50:33.1 |
HIP 41805 |
19.07 |
| 2026-10-09 00:00 |
08:30:26.62 |
+52:50:58.6 |
HIP 41805 |
18.50 |
| 2026-10-09 12:00 |
08:30:29.40 |
+52:51:24.2 |
HIP 41805 |
17.92 |
| 2026-10-10 00:00 |
08:30:32.12 |
+52:51:50.2 |
HIP 41805 |
17.35 |
| 2026-10-10 12:00 |
08:30:34.78 |
+52:52:16.3 |
HIP 41805 |
16.78 |
| 2026-10-11 00:00 |
08:30:37.38 |
+52:52:42.7 |
HIP 41805 |
16.22 |